The Nurse Has Educated Parents on Administration of Iron to Their

The nurse has educated parents on administration of iron to their child.What statement by the parents indicates a need for further instruction?

A) "I will call the doctor right away if my child has black, tarry stools."
B) "It is best if the iron is taken on an empty stomach or with orange juice."
C) "Rinsing the mouth after taking iron will prevent staining the teeth."
D) "We will have our child drink the iron preparation through a straw."